An samll mercurial extension to list lastest revision of each file

lof.py

"""
    To install this hg extenstion:
    open /path/to/repo/.hg/hgrc
    add this lines:
        [extenstions]
        lof=install/lof.py
"""
#http://selenic.com/pipermail/mercurial/2010-February/029951.html
#http://mercurial.selenic.com/wiki/MercurialApi

from mercurial import cmdutil, commands
from mercurial.i18n import _
import logging

def lof(ui, repo, node=None, rev=None, *pats, **opts):
    if rev and node:
        raise util.Abort(_("please specify just one revision"))
    rev = node or rev or None # None is working directory
    changectx = repo[rev]
    try:
        manifest = changectx.manifest()
        displayer = cmdutil.show_changeset(ui, repo, opts)
        for f in manifest:
            try:
                fctx = repo.filectx(f, fileid=manifest[f])
                node = fctx.node()
                ui.write('%s: ' % f)
                displayer.show(repo[node])
            except LookupError: # a modified file when rev=working directory
                assert rev is None
    except Exception:
        logging.exception('Exception on file %s: ' % f)
        pass

ext_opts = [('r', 'rev', None, _('revision'), _('REV')),
            ]
cmdtable = {
    'lof': (lof, ext_opts + commands.templateopts, _('hg lof [[-r] rev] [OPTION]...'))
}